/Engine/Plugins/Runtime/RigVM/Source/RigVMDeveloper/Public/RigVMBlueprintCompiler.h
Prunes any nodes that weren't visited from the graph, printing out a warning
virtual void PruneIsolatedNodes ( const [TArray](API\Runtime\Core\Containers\TArray)< [UEdGraphNode](API\Runtime\Engine\EdGraph\UEdGraphNode) * > & RootSet, [TArray](API\Runtime\Core\Containers\TArray)< [UEdGraphNode](API\Runtime\Engine\EdGraph\UEdGraphNode) * > & GraphNodes )